Bottle forming machine cam



y 29, 1951 s. E. WINDER BOTTLE FORMING MACHINE CAM 2 Sheets-Sheet 1 Filed Feb. 21, 1948 5n MUEL V E. wmaek w w 4 21 M 4 w 6 H x 2 0 5 n 5 (w m 4. m I I I 0 7 8 5 6 m/ 2 1 fl 5 5 4, fi a6 4 F y 1951 s. E. WINDER 2,554,545

BOTTLE FORMING MACHINE CAM Filed Feb. 21, 1948 2 Sheets- Sheet 2 INI/ENTO 55/4051. 4-. DER

Patented May 29, 1951 Samuel E. Winder, 'West Medway,-'Mass., assignor of one-half to Henry C. -Daubenspeck, Massillon, Ohio Application February 21, 1948, Serial No. 10,161

2-"Claims. 1 The present invention relates generally to bottle forming machines, and more particularly to adjustable cam means for controlling the timing of. certain elements and devices incorporated in the machine.

.Specifica'lly, the invention concerns improve ments in the adjustable cam assembly mechanisms associated with the bottle forming machine .lillustrated and described in my .copendingapplicationfierial No. 688,470, filed August 5,1946.

.The.invention is particularly directed to the cam assemblies whereby the timing, withrespect to the .opening and closing of the blank molds, theoperationof the transfer mechanism, the operation of the .blow mold cylinder, and the operation of the blowhead of said machine, is controlled.

.The cam..assemblies of my said pending ap- .plicationihavebeen found to function very efiiciently. However, the improvements included in .the ..present novel mechanism provide additionaladvantages and features, as will appear, and .maydoe installed on said forming machine without requiring any change in its construction or mode. of. operation.

The .cam assemblies of the pendingapplication are manually adjustable while the forming machineis 'inoperation, and, inthis respect as well as in .others,, no change is contemplated.

..A.primary..object of the invention, therefore, .is-.to provide a .cam assembly, or assemblies, which will control the timing of the operations aforesaid.

,A-furtherobject is to provide for, such cam ,assembly or.assemblies, means whereby adjust-- ments may be more quickly and easily effected, and. whereby, a considerably greater range of aldju'stability' is afforded.

Another object is to provide convenient means lforthe'ready adjustment of said cams while the machine is in operation.

'Other objectsand advantages of the invention will 'become'apparent from thedescription to'ffollow, reference being had also to-the' accompany'in'g drawings in which the preferred embodiment of the invention has-been illustrated in connection with the transfer mechanism 'of said'machine.

I It is to be understood, of course, that the other timing cam assemblies operate in much the same .manner,..but. it is not considered necessary to illustrate. and "describe each of them in'detail.

Themam assembly for regulatingjthe transfer :mechanismlhas, therefore, been selectedasljthe best for illustrative and descriptive purposes, primarily because it includes two, rather than one, adjustable cam plates.

In said drawings: Fig. 1 is an elevational view of the composite central column of the forming machine with which the present invention is associated, elements included in said invention "being shown in relation to a-portion of the'transfer mechanism, the latter being in vertical section;

Fig. 2 is an enlarged top plan of the upper part of Fig. 1, being a 'view partly in section and taken on line '2-2 of Fig. 1;

Fig. 3 is an enlarged View of a portion ofFig. 1,.more. clearly portraying some of the elements includedin the invention;

Figs. 4, 5 andfi are horizontal sectional views, taken, respectively, on'lines 4-4, "5'-5 and=B-6 of Fig. 3;

Fig. 7 is a vertical sectional view taken approximately on line i? of Fig. 5;

Fig. 8 is a top plan view of an annular sleeve or collar'which is rigidly mountedon the'column to support the moving parts oftheinventioh;

Fig. 9 ,is a, downwardly projected elevational View thereof, partly in section;

.Fig. 10 is an ,elevational view thereof as--it appears from a point ninety degrees to the -right inFig.8;

Fig. 11 is a top planview of a split lowerinternal gear ring member;

Fig. 12 is a downwardly-projected elevatienal view thereof;

Fig. 13 is an elevational view, partly in section, of one segment-of said internal-ringgeanmember;

,Fig. leis a similar view of the othensegment thereof;

Fig. 15 is a View ofone ofa pair of identical cam track segments, on a slightly reduced-scale; and

Fig. 16 is a-projectededge View thereof.

Inasmuch, as hereinbeforenoted, the instant mechanism is directed primarily to timing certain operations of the forming machine, which are described in detail inmysaid pendinglapplication, it is, deemed advisablej-in the interest of clarity, to identify correspondingparts with the same reference characters emp1oyed -in that description.

Thus, with particular reference to Fig. 1, parts of the machine shown include the rota-table table: I90, the annular rotating vacuum'ch'amber housing'iits associated with a stationaryinem- .65. b .610, the air distributor" I 2G8fl-and thefcoim end of the plug 85?. transfer mechanism is operable is clearly de- -mounted on the column section erally designated 35,

posite central column, generally designated I35.

The latter includes a plurality of integral sections of successively decreasing external diameters, all of them joined by' thus resulting annular shoulders. These sections, in ascending order, are indicated I51, I68, I59, I and Ill. The entire column is hollow, all compressed air for operating the machine being introduced via the pipe I205.

Also shown, and seen to best advantage in Fig. 2, are the table 3I8, key |B86,.the vertically extending shaft 900 with its attached worm wheel 9!", worm gear 902, a'shaft 9B3 rigid therewith, and a supporting bracket 904. The extremity of the shaft 903 opposite the worm gear is provided with a manually rotatable knob, which is not shown.

In addition, there is shown the vertically extending shaft 928, with its attached worm wheel 930, worm gear 93|, shaft 932 rigid therewith, and supporting bracket 933. The extremity of the shaft 932 opposite the worm gear is provided with a manually rotatable knob 934.

The elements thus far designated and their operative functions are set forth in detail in said pending application. The adaptation of the instant invention thereto will presently appear, particularly in connection with the transfer mechanism fragmentarily illustrated in vertical section in Fig. 1. The parts of said mechanism portrayed include the valve housing 853, the cylinder 692, the valve slide or plug 351 having a central bore 858, and radial passages 859 and 850. Also shown are radial passages 353 and 854 in the valve housing, a cam roller 859 at the end of a plug, and a guide roller arrangement SIil which engages within a slot 8II to determine the maximum movement of the valve plug, and prevent it from rotating. In addition, there is shown the piston 694 and piston rod 695.

All of these parts are identical with those illustrated in the pending application with but one exception, and that is, the radial passage 35!?! is bored slightly closer to the right-hand The manner in which this scribed in said pending application.

Also indicated in Fig. l by broken lines are, at A, the cam assembly for operating the valves controlling the opening and closing of theblank molds; at B, the cam assembly for operating the mold cylinders; and at C, the cam assembly .for operating the blowhead. These cam assemblies generally embody mechanism similar to that about to be described.

The cam assembly, generally selected to exemplify the present indicated 23, invention, is I61 and supported on the shoulder 2|. It includes the collar 23, which is rigidly attached to the column by a screw 24 extending through an aperture 25 provided in said collar. The collar is provided with an annular base flange portion 28, apair of recesses 29 and 39, and a vertical opening 3|, for reasons to appear. The recesses 29 and 30 are counterbored to provide vertical bearing openings 32 and 33 which continue through the base flange 28.

Supported on the base flange 28 for rotary movements about the collar 23 are a pair of identical upper and lower internal ring gear assemblies. The upper of said assemblies is genand the lower 35.

With particular reference to Fig. 11, in which der pressure.

4|]. A pair of spaced vertical apertures bly 36. The extremity two halves or segments, designated 38 and 39, rigidly secured together ture by means of tap bolts 43. The segment 38 includes a body portion 4| provided with inan integral laterally eX-- tending flange portion 43, and a pair of horizon- 44 to receive the bolts 45 is ternal gear teeth 42,

tal threaded apertures provided in the flange 43.

The segment 39 includes a body portion 48 provided with internal gear teeth 49, an integral laterally extending flange portion 56, and a pair of horizontal openings 5| to accommodate the shanks of the tap bolts. As manifest from an inspection of this view, the parts are so designed that, when in properly assembled relation, a complete internal ring gear is provided. It is also seen in Fig. 12 that the flanges 43 and 53 are in the same plane. The latter flange is preferably cut away, as at 52, and is provided with a vertically disposed aperture 53 in spaced relation to the apertures 45 in the flange 43.

The upper assembly 35 is identical in every respect, and the same reference numerals are applied to the parts. However, when in proper position on the column, the upper ring assembly is inverted. With particular reference to Figs. 15 and 16, one of a pair of identical arcuate cam tracks or plates 5c is seen to include three spaced threaded apertures 55' which coincide with the apertures 45 and 53. There is also provided a beveled or tapered portion 56.

With reference now to Figs. 5, 6 and 7, it is seen that the shaft 930 terminates at its lower end in a square extremity 58, and that the vertical shaft 928 terminates at its lower end in a similar extremity 6|]. The extremity 58 enters a square opening 62 in a pinion 53, which is in mesh with the internal ring gear of the lower ring assem- 53 enters a square opening 65 in a pinion 56 in mesh with the internal ring gear of the upper assembly 35. Each of the pinions is provided with a depending annular boss 51 adapted to enter the openings 32 and 33 in the collar 23, whereby said pinions are rotatably supported as shown in Fig. '7.

It should thus be apparent that rotation of the shaft 903 will cause the lower ring assembly 36 to rotate about the collar 23, and that rotation of the shaft 923 will cause the upper ring gear assembly 35 to do likewise.

It should also be apparent from an inspection of Fig. 10 that the recess 35 is disposed at a higher elevation than is the recess 29 in order to position the pinions. 7

As best seen in Fig. '7, the cam track segments 54 are secured to the flanges 43 and 50 by means of tap bolts III, which passv through the apertures 55 and engage the threaded holes 45 and 53. To protect the internal mechanism and simultaneously maintain the parts in position, a cover I2, including a collar portion I3 and an annular base flange I4, is secured to the column by setscrews I5, or the like. Openings I5, I1 and 18 are provided in the cover for the passage therethrough, respectively, of the shafts 900, 928, and a similar shaft which, though not shown, extends to the cam assembly A, after also passing through the opening 3| provided in the collar 23.

As described in said pending application, each valve assembly roller is maintained outwardly, that is, to the left as viewed in Fig. 1, by air un- Thus for example, the roller 869 to form a unitary strucis so maintained by air pressure against the valve plug 85?. Thus, as the machine rotates, the cam faces 54, riding against the roller, move the latter to the right against the pressure of air, but when said cam faces do not engage the roller, the latter is caused to move to the left.

It is noted that, in operativ position, the cam track segments 54 are oppositely disposed. With this arrangement, as indicated at 19 in Figs. 4 and 5, the tapered end 56 of the segment attached to the upper assembly 35 permits the cam roller 859 to ride inwardly, and, as indicated at 80, the tapered end 56 of the segment attached to the lower assembly 36 causes said roller to ride outwardly, as the machine turns clockwise. It is also noted that the parts are so designed that clearance space obtains between the track segments, as indicated at 8| in Fig. '7. Thus, whereas the upper assembly 35 rests on the lower assembly 36, the upper and lower track segments never come into contact with one another.

From the foregoing, it is obvious that the space between the points 79 and 80 may be varied by rotating either the upper or the lower ring assembly, or both.

In this manner, an adjustable composite track is provided, by means of which the beginning and the end of a cam action may be controlled.

Operation Assuming that, before the machine is set in motion, the assembly has been adjusted to provide the approximate timing necessary for a particular type of ware, more minute and accurate adjustments may be made with the machine in full operation.

To this end, the manually operable knobs on the outer ends of the shafts 903 and 932 are provided. Assuming then that it is desired to shift the upper track segment, either clockwise or counterclockwise from the position it occupies in Fig. 5, the shaft 932 is rotated. This rotation transfers rotary motion to the pinion 66, which, in turn, motivates the upper ring assembly to which said segment is attached. Similarly, if it be desired to shift the lower cam segment, either clockwise or counterclockwise from the position it occupies in Fig. 5, then the shaft 903 is rotated. Such rotation transfers rotary motion to the pinion 63, which, in turn, motivates the lower ring assembly to which said lower segment is attached.

From the foregoing, it should be evident that the invention attains its objects by a combination of elements which are highly efficient. Whereas the preferred embodiment thereof has been illustrated and described, the invention obviously admits of slight modifications, without departing from the principle thereof. Therefore, the scope of the invention is limited only by the appended claims.

What is claimed is:

1. In a bottle forming machine including a rotatable central column, a valve assembly for operating the transfer mechanism, and a reciprocable roller for controlling the action of said valve assembly; cam mechanism for regulating the reciprocal movements of said roller, said mechanism including a collar rigidly secured to said column, an annular projecting base flange on the collar, a pair of similar substantially annular members supported on the base flange in superimposed relation for rotary movements relative to one another about said collar, a laterally projecting integral flange on the upper of said annular members, a laterally projecting integral flange on the lower annular member, an arcuate cam track segment secured to each flange and adapted to engage said roller, a beveled end on each cam track, an internal ring gear formed on the inner periphery of each annular member, a first pinion in constant engagement with the upper internal gear ring, a second pinion in constant engagement with the lower internal gear ring, recessed portions terminating in different planes formed in said collar each to receive one of said pinions, bearing openings in said collar each to receive an integral depending boss portion of one pinion, a pair of vertically positioned shafts each in engagement at its lower end with one of said pinions, and means at the upper end of each shaft manually operable to rotate each of said pinions individually.

2. In a bottle forming machine including a rotatable central column, a valve assembly for operating the transfer mechanism, and a reciprocable roller for controlling the action of said valve assembly; cam mechanism for regulating the reciprocal movements of said roller, said mechanism including a collar rigidly secured to said column, an annular projecting base flange on the collar, a pair of similar substantially annular members supported on the base flange in superimposed relation for rotary movements relative to one another about said collar, a laterally projecting integral flange on the upper of said annular members, a laterally projecting integral flange on the lower annular member, an arcuate cam track segment secured to each flange and adapted to engage said roller, a beveled end on each cam track, an internal ring gear formed on the inner periphery of each annular member, a first pinion in constant engagement with the upper internal gear ring, a second pinion in constant engagement with the lower internal gear ring, recessed portions terminating in different planes formed in said collar each to receive one of said pinions, bearing openings in said collar each to receive an integral depending boss portion of one pinion, a pair of vertically positioned shafts each in engagement at its lower end with one of said pinions, means at the upper end of each shaft manually operable to rotate each of said pinions individually, and a cover member including a collar portion rigidly secured to said central column and having an annular flange portion adapted to overlie the pinion and ring gear members.

SAMUEL E. WINDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,684,064 Miller Sept. 11, 1928 2,207,629 Mitchell July 9, 1940 2,450,311 Strunk Sept. 28', 1948 

